Prime Minister Tony Abbott said the Government was "revolted" by the prospect of the two men being killed and was continuing to press Indonesia for a stay of execution.

"I think right now millions of Australians are feeling sick in their guts at the prospect of execution for these two," he said.

"But I've got to say anger is not a very good basis on which to determine a nation's policy, and in the long run, anger is not a very good basis on which to determine your own conduct.

"So let's see how things develop, let's maintain our values, let's maintain our respect for human life as a nation and as a society, but let's remember that a good relationship with Indonesia is very important to this country.

"And whatever might happen in the next few days, the relationship with Indonesia must endure and over time it must grow stronger."

Federal politicians have re-formed the Parliamentarians Against the Death Penalty Group, which was disbanded at the last election, in a show of support for the Bali Nine pair.

"There were some suggestions earlier that perhaps at least some people in the Indonesian system were having second thoughts, but I'm afraid those second thoughts seem to be dissipating," he said.

Indonesian president Joko Widodo has said he will not grant clemency to drug traffickers on death row.

Former attorney-general Philip Ruddock said Australia would continue to seek a stay of execution.

"It would appear to suggest that the Indonesians are progressing to a situation where they will be executed, I think that is clear, but that doesn't mean we should stop putting our representations [forward] and I know the Foreign Minister's been very active in relation to the matter," Mr Ruddock said.

"I don't think [the disbandment of the Parliamentarians Against the Death Penalty Group] would, in that sense, have made an immediate difference in relation to the convictions that they suffered, the death penalty that was imposed, but I've wanted to ensure that we have a continuing role in these matters."

Lawyers for Chan and Sukumaran are still attempting a legal appeal, but the Indonesian government is effectively ignoring that, saying nothing can stop the executions.

Lead lawyer Todong Mulya Lubis said continuing with the process would be an injustice.

"What is the point of having all this legal recourse available, provided to you by the law, if they don't respect it?" he said.

Mr Lubis said going ahead with the executions would deeply disturb the international community.